data interpolation and arrangement

I have csv file named as '1_1.csv', '1_2.csv', ...'1_41'.csv, '2_1.csv', '2_2.csv', ..'2_41.csv',............'71_1.csv', '71_2.csv',......'71_41.csv'. Each csv file has a data of temperature for different location (X ,Y, Z ,T). Each csv file has different number of rows because result is generated from comsol. I want to estimate temperature on specific point in each csv file. I have made another folder named "DATA" which contains my specific point(X, Y ,Z) in which i want to estimate temperature in each csv file. It is possible that our specific point may not be in csv file so i need to find temperature on that point with the help of interpolation.

I was using the code given below to get my temperature profile.

XYZq = csvread("DATA.csv");

num1s = 1:71;

num2s = 1:41;

T_interp = nan(size(XYZq,1),numel(num1s),numel(num2s)) % 3 dimensions

for num1 = num1s

for num2 = num2s

dataFilename = sprintf("%d_%d.csv",num1,num2)

data = csvread(dataFilename,9)

T_data = scatteredInterpolant(data(:,1:3),data(:,4));

T_interp(:,num1,num2) = T_data(XYZq);

end

end

now file name changes as '1_1_1.csv', '1_1_2.csv', ...'1_1_11'.csv, '1_2_1.csv', '1_2_2.csv', ..'1_2_11.csv',............'1_9_11.csv', '21_1_1.csv', '21_1_2.csv',.. '21_1_11.csv', '21_2_1.csv', '21_2_2.csv', '21_2_11.csv'.......'21_9_1.csv', '21_9_2.csv', .... '21_9_11.csv'.

now how can i modify this code to upload my csv file and get my desire temperature data? Please help me

Answer 1

[Siraj]

Hi!

I understand that you currently have CSV files named in the format "x_y.csv", where x ranges from 1 to 71 and y ranges from 1 to 41. You also have a file named "DATA" containing (X, Y, Z) coordinates, and you want to find the corresponding temperature (T) for each (X, Y, Z) point.

Now, it seems that the issue you are facing is that the file names have been changed to the format "x_y_z.csv", with x ranging from 1 to 21, y ranging from 1 to 9, and z ranging from 1 to 11. However, you want to ensure that this new file naming format does not affect the behaviour of your existing code.

Assuming that only the file names have changed, and the content format of the files remains the same, the modification you need to make is to change the way the file names are generated. You can refer to the following code to incorporate the modification needed:

num1s = 1:21;   % Range of values for the first number in the file name 
num2s = 1:9;    % Range of values for the second number in the file name 
num3s = 1:11;   % Range of values for the third number in the file name 

for num1 = num1s 
    for num2 = num2s 
        for num3 = num3s 
            dataFilename = sprintf("%d_%d_%d.csv", num1, num2, num3); 
            disp(dataFilename);  % Display the generated file name 
        end 
    end 
end 

1_1_1.csv
1_1_2.csv
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18_3_11.csv
18_4_1.csv
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18_6_1.csv
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18_7_1.csv
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18_7_8.csv
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18_8_1.csv
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18_8_8.csv
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18_9_1.csv
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18_9_8.csv
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19_1_1.csv
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19_2_1.csv
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19_3_1.csv
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19_3_5.csv
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19_3_7.csv
19_3_8.csv
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19_4_1.csv
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19_4_7.csv
19_4_8.csv
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19_5_1.csv
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19_7_1.csv
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19_7_6.csv
19_7_7.csv
19_7_8.csv
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19_8_1.csv
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19_8_7.csv
19_8_8.csv
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19_9_1.csv
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20_1_1.csv
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20_4_1.csv
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20_5_1.csv
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20_6_1.csv
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20_7_1.csv
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21_1_1.csv
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21_2_1.csv
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21_2_7.csv
21_2_8.csv
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21_3_1.csv
21_3_2.csv
21_3_3.csv
21_3_4.csv
21_3_5.csv
21_3_6.csv
21_3_7.csv
21_3_8.csv
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21_3_11.csv
21_4_1.csv
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21_4_3.csv
21_4_4.csv
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21_4_6.csv
21_4_7.csv
21_4_8.csv
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21_4_11.csv
21_5_1.csv
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21_5_3.csv
21_5_4.csv
21_5_5.csv
21_5_6.csv
21_5_7.csv
21_5_8.csv
21_5_9.csv
21_5_10.csv
21_5_11.csv
21_6_1.csv
21_6_2.csv
21_6_3.csv
21_6_4.csv
21_6_5.csv
21_6_6.csv
21_6_7.csv
21_6_8.csv
21_6_9.csv
21_6_10.csv
21_6_11.csv
21_7_1.csv
21_7_2.csv
21_7_3.csv
21_7_4.csv
21_7_5.csv
21_7_6.csv
21_7_7.csv
21_7_8.csv
21_7_9.csv
21_7_10.csv
21_7_11.csv
21_8_1.csv
21_8_2.csv
21_8_3.csv
21_8_4.csv
21_8_5.csv
21_8_6.csv
21_8_7.csv
21_8_8.csv
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21_8_11.csv
21_9_1.csv
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21_9_3.csv
21_9_4.csv
21_9_5.csv
21_9_6.csv
21_9_7.csv
21_9_8.csv
21_9_9.csv
21_9_10.csv
21_9_11.csv

By updating the file name generation in your code to match the new format, you should be able to process the files and get the desired result without changing any other line in the existing code.

Hope this helps.